A factory manufactures steel scales with mean thickness 0.032 cm. A random sample of 10 scales was found to have mean thickness of 0.030 cm with a standard deviation of 0.002 cm. [t₉(0.05) = 2.262].

A. $\bar{x}$ = 0.03 cm, $\mu$ = 0.032 cm
B. $\bar{x}$ = 0.032 cm, $\mu$ = 0.03 cm
C. $|t|=3$
D. Null hypothesis is rejected.
E. Alternative hypothesis is rejected.

Choose the correct answer from the options given below:

A, C, D only

The correct answer is Option (2) → A, C, D only